Periodic Table of Elements

Flashcard
•
Science
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Where are metals located on the periodic table?
Back
Metals are found on the left side of the periodic table.
2.
FLASHCARD QUESTION
Front
What does the number 12.011 represent in the periodic table?
Back
12.011 represents the atomic mass of an element.
3.
FLASHCARD QUESTION
Front
How many protons does the element with atomic number 79 have?
Back
The element with atomic number 79 has 79 protons.
4.
FLASHCARD QUESTION
Front
What is the term for a horizontal row of elements in the periodic table?
Back
A horizontal row of elements in the periodic table is called a Period.
5.
FLASHCARD QUESTION
Front
What does the atomic number represent?
Back
The atomic number represents the number of protons in an atom.
6.
FLASHCARD QUESTION
Front
What is the general trend of reactivity in metals as you move down a group in the periodic table?
Back
Reactivity of metals generally increases as you move down a group in the periodic table.
7.
FLASHCARD QUESTION
Front
What is the difference between atomic mass and atomic number?
Back
Atomic mass is the weighted average mass of an element's isotopes, while atomic number is the number of protons in the nucleus of an atom.
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